Vulnerability Details : CVE-2021-21036
Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Integer Overflow vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Vulnerability category: Overflow
Products affected by CVE-2021-21036
- Adobe » Acrobat Reader » Classic EditionVersions from including (>=) 17.0 and up to, including, (<=) 17.011.30188cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
- Adobe » Acrobat Reader » Classic EditionVersions from including (>=) 20.0 and up to, including, (<=) 20.001.300183cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:classic:*:*:*
- Adobe » Acrobat » Classic EditionVersions from including (>=) 20.0 and up to, including, (<=) 20.001.30018cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
- Adobe » Acrobat » Classic EditionVersions from including (>=) 17.0 and up to, including, (<=) 17.011.30188cpe:2.3:a:adobe:acrobat:*:*:*:*:classic:*:*:*
- cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:continuous:*:*:*
- cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21036
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 42 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21036
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
Adobe Systems Incorporated |
CWE ids for CVE-2021-21036
-
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.Assigned by:
- nvd@nist.gov (Primary)
- psirt@adobe.com (Secondary)
References for CVE-2021-21036
-
https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
Adobe Security BulletinVendor Advisory
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